The relationship between warm absorber (WA) outflows of active galactic nuclei and nuclear
obscuration activities caused by optically thick clouds (obscurers) crossing the line of sight is …

Context. Joint XMM-Newton and NuSTAR multiple exposures allow us to disentangle the
different emission components of active galactic nuclei (AGNs) and to study the evolution of …

Context. A growing number of transient X-ray obscuration events in type I active galactic
nuclei suggest that our line of sight to the central engine is not always free. Multiple X-ray …

Spectral-timing techniques have proven valuable in studying the interplay between the X-ray
corona and the accretion disc in variable active galactic nuclei (AGNs). Under certain …

Context. Accretion disk winds launched close to supermassive black holes (SMBHs) are a
viable mechanism providing feedback between the SMBH and the host galaxy. Aims. We …

We report on one of the brightest flux levels of the Seyfert 2 galaxy NGC 2992 ever observed
in X-rays, on 2019 May. The source has been monitored every few days from 2019 March 26 …

Eclipsing of the X-ray emitting region in active galactic nuclei (AGN) is a potentially powerful
probe to examine the AGN environment and absorber properties. Here, we study the eclipse …

We report on the short-and long-term X-ray properties of the bright nearby Seyfert 2 galaxy
NGC 2992, which was extensively observed with Swift, XMM–Newton, and NuSTAR. Swift …

The Type 1 active galactic nucleus (AGN) ESO 511-G030, a formerly bright and soft excess
dominated source, was observed in 2019 in the context of a multi-wavelength monitoring …

In modeling the X-ray spectra of active galactic nuclei (AGNs), the inclination angle is a
parameter that can play an important role in analyzing the X-ray spectra of AGNs, but it has …